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习题练习:SL/HL Topic D4.2 Stability and change



 作者: admin   总分: 10分  得分: _____________

答题人: 匿名未登录  开始时间: 02月01日 01:26  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) (组内1/4) 切至整卷模式 搜藏此题  
第 1 题组 (共 4 题 4 分)
  1. Which of the following contribute to the problem of microplastic pollutioni ,*v cch(+fatj+d9 c3.bwcbg in marine environmencj*3f( d+bvcctwbh+i 9,gac .ts?
I. Persistence of microplastics.
II. Biodegradability of microplastic.
III. Non-biodegradability or microplastic.
IV. Increased biochemical oxygen demand.

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2#
 
单选题 ( 1.0 分) (组内2/4) 切至整卷模式 搜藏此题  
  2. In Botswana, forest cover decreased from 18.8 million hecta4 d, 74m wsjkk7isxo1mres to 15.3 million hectares between 1990 and 2020. Calculate the percentage loss in fomkms4x 771k4oiw, jdsrest cover during this period.

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3#
 
单选题 ( 1.0 分) (组内3/4) 切至整卷模式 搜藏此题  
  3. Which of the following doel8m i,gtwd 3/cs not contribute to ecosystem stability?

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4#
 
单选题 ( 1.0 分) (组内4/4) 切至整卷模式 搜藏此题  
  4. Why does leaching of nitrogen and phosphatej*i 66 gi7,mc1mgii oyf6h0at fertilisers lead to an increase the Biochemical Oxygen Demand (BOD) of local f,g6c166iijam* f o0ytig7mhireshwater ecosystems (lakes and rivers)?

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5#
 
问答题 ( 1.0 分) (组内1/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第1/3题
题组内容描述:
5. David Latimer created the mesocosm pictured below. It was last watered in 1972 and has been sealed ever since that date. It is still viable (living).
a. Suggest why the mesocosm is perg+)cf+i jk hth2,; 11fyte updsisting despite being sealed for over 50 yearscep)i ;y+ h1j+2,kt1 ufghtfd .
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6#
 
问答题 ( 1.0 分) (组内2/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第2/3题
题组内容描述:
5. David Latimer created the mesocosm pictured below. It was last watered in 1972 and has been sealed ever since that date. It is still viable (living).
b. State two factors that are neede:v *-2qtk ob.ni+y4 r;vxy;uun9amw id from outside the sealed system to maintain its 2 n-v*n4.w bo;x+ akviy9ium;u r tqy:
sustainability.
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7#
 
问答题 ( 1.0 分) (组内3/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第3/3题
题组内容描述:
5. David Latimer created the mesocosm pictured below. It was last watered in 1972 and has been sealed ever since that date. It is still viable (living).
c. Discuss to what extent this sealed mes5 x8j oddkcr+;ocosm models the ecosystem of planet earth.8 kc x;j5dr+do
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8#
 
问答题 ( 1.0 分) (组内1/3) 切至整卷模式 搜藏此题  
第 3 题组 (共 3 题 3 分)
6. Outline the role of keystox-c3jmnif 7fo61 .b tone species in the maintenance of a stable ecosystem. 1 36xofn.jtmfo- ic7b
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9#
 
问答题 ( 1.0 分) (组内2/3) 切至整卷模式 搜藏此题  
7. Fish are a renewable resource for human consumption. lqwv lrkpbjz 8n;7 hfe:193h7Outline how harvesting of fish can be sustainable andhp7 rk z :7lh9q3elwn;fb1j8 v how sustainability can be assessed.
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10#
 
问答题 ( 1.0 分) (组内3/3) 切至整卷模式 搜藏此题  
8. Describe, with an example, how the chan)i9 x-2m g wek2oaz6wqges that occur in primary succession can lead to a climax community which has cyclical successix o6wge 22z qk-)w9maion.
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